Perhaps if you had some special mouse/keyboard/gamepad software that allows you to record macros or specify buttons you could make it tap forward very fast but not hold and you would only "walk" just like when you tap your mouse button but not hold it in-game though that is very time-consuming and, annoying

Simple answer is no, maybe Bioware will add feature in a patch if we nag them about it enough though?

why would you want to walk in this game? it got annoying enough just being able to run. i mean sometimes i feel it would be a nice additive for ambience purposes. but geez on kashyyk it would have been downright hell.